Textron Lycoming O-540 Series - Page 20

TEXTRON
LYCOMING
OPERATOR'S
MANUAL
SECTION
2
0-540
& 10-540
SERIES
SPECIFICATIONS
10-540
-A, -B,
-E, -G,
-P SERIES
FAA Type
Certificate
....................................
1E4
Rated
horsepower.
.......................................
290
Rated
speed,
RPM
.......................................
2575
Bore,
inches...............
...................
.....
5.125
Stroke,
inches ..........................................
4.375
Displacement
cubic
inches
................................
541.5
Compression
ratio ........................................
8.7:1
Firing order
...........................................
1-4-5-2-3-6
Spark occurs,
degrees
BTC ...........
..................
20
°
Valve rocker
clearance
(hydraulic
tappets
collapsed)
........
028-.080
Prop.
drive ratio
........................................
1:1
Prop. driven
rotation
.....................................
Clockwise
-V SERIES
IO-540-D, -N, -R,
-T*, -V SERIES
FAA Type
Certificate
.........
.
..
.......
.....
1E4
Rated
horsepower
........................................
260
Rated speed,
RPM
.........
...........
....
2700
Bore,
inches ..............................
5.125
Stroke,
inches
...................
.......................
4.375
Displacement
cubic
inches
................................
541.5
Compression
ratio
......................................
8.5:1
Firing
order...........................
................. 1-4-5-2-3-6
Spark
occurs,
degrees
BTC
...............................
25
°
Valve rocker
clearance
(hydraulic
tappets
collapsed)
........
028-.080
Prop. drive
ratio ........................................
1:1
Prop.
driven rotation
.....................................
Clockwise
* - IO-540-T4B5
model
engine
has
an alternate
rating
of 250
horsepow-
er at 2575
RPM.
When
operated
at alternate
rating, all
performance
data
pertinent
to the IO-540-C
series is applicable.
2-2
Revised
January
1997